761683816642 has 32 divisors (see below), whose sum is σ = 1318406753664. Its totient is φ = 323285126400.

The previous prime is 761683816603. The next prime is 761683816643. The reversal of 761683816642 is 246618386167.

It is not an unprimeable number, because it can be changed into a prime (761683816643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12928 + ... + 1234315.

It is an arithmetic number, because the mean of its divisors is an integer number (41200211052).

Almost surely, 2^761683816642 is an apocalyptic number.

761683816642 is a deficient number, since it is larger than the sum of its proper divisors (556722937022).

761683816642 is a wasteful number, since it uses less digits than its factorization.

761683816642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247674.

The product of its digits is 13934592, while the sum is 58.

The spelling of 761683816642 in words is "seven hundred sixty-one billion, six hundred eighty-three million, eight hundred sixteen thousand, six hundred forty-two".